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Related Concept Videos

Major Somatic Sensory Pathways01:28

Major Somatic Sensory Pathways

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Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the...
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Local Anesthetics: Differential Sensitivity of Nerve Fibers01:24

Local Anesthetics: Differential Sensitivity of Nerve Fibers

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Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...
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Disorders of the Autonomic Nervous System01:18

Disorders of the Autonomic Nervous System

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The autonomic nervous system (ANS) is an intricate network of nerves that controls functions such as the regulation of heart rate, digestion, and blood pressure regulation. When this system malfunctions, it can lead to various disorders that affect multiple bodily functions. One common feature of many autonomic disorders is the involvement of smooth blood vessels, which play a crucial role in regulating blood flow throughout the body.
Raynaud's disease, also known as Raynaud's...
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Spinal Nerves: Plexus I01:22

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Nerve plexuses are networks of interlacing nerves that serve as communication hubs to distribute and organize nerve action across various body regions. The nerve plexuses are organized into the cervical plexus located in the neck region, brachial plexus in the shoulder area, lumbar plexus found in the lower back, sacral plexus situated in the pelvis, and coccygeal plexus located in the coccygeal region.
The Cervical Plexus
The cervical plexus, formed by the anterior rami of the first four...
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Overview of Somatic Sensory Pathways01:29

Overview of Somatic Sensory Pathways

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Somatic sensory or somatosensory pathways refer to the neural pathways that carry information related to touch, pressure, pain, temperature, and proprioception from the skin, muscles, tendons, and joints to the brain. These pathways involve several stages of processing and integration of sensory information.
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The dorsal...
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Peripheral Nervous System: Ganglia and Nerves01:24

Peripheral Nervous System: Ganglia and Nerves

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The Peripheral Nervous System (PNS) is a crucial component of the body's neural network, extending beyond the central nervous system (CNS) to bridge the gap between the CNS and the external environment. It encompasses nerves, ganglia, and sensory receptors.
Nerves
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Updated: Jun 27, 2025

Nerve Ultrasound Protocol to Detect Dysimmune Neuropathies
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Other median neuropathies.

Danielle Richards1, Kerry H Levin1

  • 1Neuromuscular Center, Cleveland Clinic, Cleveland, OH, United States.

Handbook of Clinical Neurology
|May 2, 2024
PubMed
Summary
This summary is machine-generated.

Median mononeuropathy, often carpal tunnel syndrome, requires careful diagnosis. Recognizing anatomical variants and other disorders prevents misdiagnosis and surgical complications.

Keywords:
AnastomosisAnatomical variantsElectrodiagnosticMedian mononeuropathyMedian nerveMedian neuropathyNerve conduction studyProximal neuropathy

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Area of Science:

  • Neurology
  • Anatomy
  • Clinical Medicine

Background:

  • Median mononeuropathy, particularly carpal tunnel syndrome, is a prevalent clinical condition.
  • Misdiagnosis can arise from unrecognized anatomical variants or other median nerve disorders.
  • Proximal median nerve affections, including inherited and acquired conditions, can mimic distal neuropathies.

Purpose of the Study:

  • To explore anatomical variants, disorders, and lesions affecting the median nerve.
  • To highlight the importance of accurate diagnosis in preventing misidentification of median neuropathies.
  • To emphasize the role of clinical examination and electrodiagnostic studies in localizing median nerve issues.

Main Methods:

  • Review of anatomical variations of the median nerve.
  • Analysis of acquired and inherited disorders impacting the median nerve.
  • Emphasis on clinical examination and electrodiagnostic techniques for localization.

Main Results:

  • Identified common and uncommon causes of median mononeuropathy.
  • Detailed various anatomical anomalies that can affect the median nerve.
  • Illustrated conditions that may present as median mononeuropathies.

Conclusions:

  • Accurate identification of median nerve pathology is crucial for effective patient management.
  • Comprehensive evaluation including electrodiagnostic studies aids in precise localization.
  • Awareness of anatomical variants and differential diagnoses improves clinical outcomes.